EP 3939717 A4 20221214 - NOZZLE AND STRUCTURE OF NOZZLE AND STOPPER
Title (en)
NOZZLE AND STRUCTURE OF NOZZLE AND STOPPER
Title (de)
DÜSE UND STRUKTUR AUS DÜSE UND STOPPER
Title (fr)
BUSE, STRUCTURE DE BUSE ET BOUCHON
Publication
Application
Priority
- JP 2019044562 A 20190312
- JP 2020009058 W 20200304
Abstract (en)
[origin: EP3939717A1] Provided is a nozzle or a stopper having a gas blowing function, which is capable of preventing irregular breaking to be triggered by a gas outlet or a gas passage path communicated with the gas outlet, or, even in the 20 77 0442.0vent of breaking, preventing expansion of the breaking, and a combination of the nozzle and the stopper. The nozzle 2 comprises: a fitting engagement region refractory material layer 5A composed of a fitting engagement region refractory material; a nozzle body composed of a different refractory material from the fitting engagement region refractory material (main body refractory material 2A); and a gas outlet 8A provided in at least one boundary area 9 between the fitting engagement region refractory material layer 5A and the main body refractory material 2A in a surface of the nozzle contactable with molten steel.
IPC 8 full level
B22D 41/08 (2006.01); B22D 41/16 (2006.01); B22D 41/18 (2006.01); B22D 41/50 (2006.01); B22D 41/58 (2006.01); B22D 41/60 (2006.01)
CPC (source: EP US)
B22D 41/08 (2013.01 - EP); B22D 41/16 (2013.01 - EP US); B22D 41/183 (2013.01 - EP); B22D 41/186 (2013.01 - EP); B22D 41/50 (2013.01 - EP); B22D 41/502 (2013.01 - EP); B22D 41/58 (2013.01 - EP US); B22D 41/60 (2013.01 - EP)
Citation (search report)
- [XI] US 2013334263 A1 20131219 - MORIKAWA KATSUMI [JP], et al
- [XI] JP H0857613 A 19960305 - KUROSAKI REFRACTORIES CO, et al
- [A] US 4487251 A 19841211 - CAHOON JOHN B [US], et al
- [A] JP 2013043199 A 20130304 - KOGI CORP
- See also references of WO 2020184320A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3939717 A1 20220119; EP 3939717 A4 20221214; BR 112021013896 A2 20210921; CN 113272083 A 20210817; CN 113272083 B 20220517; JP 2020146702 A 20200917; JP 7182496 B2 20221202; TW 202039119 A 20201101; TW I736172 B 20210811; US 11745257 B2 20230905; US 2022111436 A1 20220414; WO 2020184320 A1 20200917
DOCDB simple family (application)
EP 20770442 A 20200304; BR 112021013896 A 20200304; CN 202080007507 A 20200304; JP 2019044562 A 20190312; JP 2020009058 W 20200304; TW 109107828 A 20200310; US 202017431214 A 20200304